Abstract: An application instance staging method comprises installing a runtime environment for an application program pushed to a cloud client; installing dependency of the application program; reading an environment variable of the application program to identify a functional service bound to the application program; modifying the application program based on the functional service bound to the application program; and packaging the modified application program, runtime environment, and dependency into an executable droplet.

Abstract: The present invention discloses an application instance staging method and apparatus. The method comprising: obtaining a list of functional services bound to an application program; determining a buildpack corresponding to the bound functional service; and performing, by the determined buildpack, application instance staging of the application program. With the technical solution according to embodiments of the invention, an application program can be automatically extended during application instance staging, such that it can interact with the bound service.

Abstract: Methods, apparatuses, and computer program products for preserving, from resource management adjustment, portions of an overcommitted resource managed by a hypervisor are provided. Embodiments include identifying, by the hypervisor, a privileged guest from among a plurality of guests of the hypervisor; identifying, by the hypervisor, portions of the overcommitted resource that are allocated to the privileged guest; and preventing, by the hypervisor, resource management adjustment to the identified portions of the overcommitted resource that are allocated to the privileged guest.

Abstract: Methods, apparatuses, and computer program products for preserving, from resource management adjustment, portions of an overcommitted resource managed by a hypervisor are provided. Embodiments include identifying, by the hypervisor, a privileged guest from among a plurality of guests of the hypervisor; identifying, by the hypervisor, portions of the overcommitted resource that are allocated to the privileged guest; and preventing, by the hypervisor, resource management adjustment to the identified portions of the overcommitted resource that are allocated to the privileged guest.

Abstract: Text entry context information associated with text entry within an inter-user communication application is evaluated. A determination is made as to whether the evaluated text entry context information identifies a text string entered by a user as a potential password inadvertently entered into the inter-user communication application by the user. In response to determining that the text string is identified as the potential password, the user is prompted to confirm that the user intends to send the text string using the inter-user communication application. The text string is transmitted using the inter-user communication application in response to a confirmation from the user to send the text string.

Abstract: A request is received to load a first page into main memory with the main memory containing a plurality of page frames. It is determined that none of the plurality of page frames is an empty page frame. User input is referenced to determine a target memory resource consumer. A second page is selected which is loaded in a first page frame. The second page is associated with the target memory resource consumer. The second page is moved from the main memory to a secondary storage device. The first page is loaded into the first page frame.

Abstract: A request is received to load a first page into main memory with the main memory containing a plurality of page frames. It is determined that none of the plurality of page frames is an empty page frame. User input is referenced to determine a target memory resource consumer. A second page is selected which is loaded in a first page frame. The second page is associated with the target memory resource consumer. The second page is moved from the main memory to a secondary storage device. The first page is loaded into the first page frame.

Abstract: A computer-implemented method is provided for reducing network traffic associated with live migration. The method comprises selecting a virtual machine on a first physical host for migration to a second physical host, and providing each application running in the selected virtual machine with notification that the migration has started. In response to receiving the notification that the migration has started, each application reducing the number of memory pages in use during the migration. The selected virtual machine and each application is then migrated from the first physical host to the second physical host, wherein the migration of each application includes migration of the reduced number of memory pages.

Abstract: A method, data storage device and computer program product for having multiple users share a single data storage device securely. A data storage device, such as a Universal Serial Bus (USB) key, is plugged into a computing device. A USB controller of the USB key recognizes the computing device and creates an account for the user. The created account is associated with the user as well as associated with the computing device. Data uploaded to the USB key by the user is then associated with the created account. Only that user will be able to view that data on his/her computing device (computing device associated with the created account) unless the user indicates to share that data with other users. Such a process may be repeated each time the USB key is plugged into a different computing device thereby creating multiple accounts associated with multiple computing devices and users.

Abstract: A method, data storage device and computer program product for having multiple users share a single data storage device securely. A data storage device, such as a Universal Serial Bus (USB) key, is plugged into a computing device. A USB controller of the USB key recognizes the computing device and creates an account for the user. The created account is associated with the user as well as associated with the computing device. Data uploaded to the USB key by the user is then associated with the created account. Only that user will be able to view that data on his/her computing device (computing device associated with the created account) unless the user indicates to share that data with other users. Such a process may be repeated each time the USB key is plugged into a different computing device thereby creating multiple accounts associated with multiple computing devices and users.

Abstract: A batching mechanism is provided that batches multiple Java Native Interface calls together such that the batch crosses the Java Native Interface boundary in a single transition. The batching mechanism operates by identifying a sequence of Java Native Interface calls to be made by native code, by encapsulating the identified sequence of Java Native Interface calls into a batch, and by communicating the batch as a single transition across the Java Native Interface boundary. In this manner, each call of the batch is encapsulated by iteratively performing for each call to be made, processes including identifying the Java Native Interface function to call, identifying the arguments to pass into the Java Native Interface function, dispatching to the Java Native Interface function and capturing the return value.

Abstract: Text entry context information associated with text entry within an inter-user communication application is evaluated. A determination is made as to whether the evaluated text entry context information identifies a text string entered by a user as a potential password inadvertently entered into the inter-user communication application by the user. In response to determining that the text string is identified as the potential password, the user is prompted to confirm that the user intends to send the text string using the inter-user communication application. The text string is transmitted using the inter-user communication application in response to a confirmation from the user to send the text string.

Abstract: A method for providing control of Java resource runtime usage may include establishing communication with one or more Java virtual machines (JVMs) forming a hive via a hive communication channel where the hive comprises a plurality of JVMs configured to enable utilization of at least one shared resource, receiving, via the hive communication channel, environmental information indicative of hive activity relative to the at least one shared resource from at least one of the one or more JVMs, and adapting, via processing circuitry, operations associated with use of the at least one shared resource based on the environmental information.

Abstract: Garbage collection processes are automatically tuned on a system comprising a plurality of virtual machines running on a physical processing device with multiple physical processors. Tuning is implemented for each garbage collection process, by updating a load variable to reflect that a new garbage collection process has started, the load variable having a value that is based at least in part on a number of garbage collection processes that are currently running on the system. Tuning further comprises creating a number of garbage collection threads based at least in part on the current value of the load variable and/or number of processors, where the garbage collection threads are used to perform at least a portion of at least one phase of the new garbage collection process. Tuning further comprises re-updating the load variable to reflect completion of the new garbage collection process.

Abstract: Methods, apparatuses, and computer program products for preserving, from resource management adjustment, portions of an overcommitted resource managed by a hypervisor are provided. Embodiments include identifying, by the hypervisor, a privileged guest from among a plurality of guests of the hypervisor; identifying, by the hypervisor, portions of the overcommitted resource that are allocated to the privileged guest; and preventing, by the hypervisor, resource management adjustment to the identified portions of the overcommitted resource that are allocated to the privileged guest.

Abstract: Methods, apparatuses, and computer program products for preserving, from resource management adjustment, portions of an overcommitted resource managed by a hypervisor are provided. Embodiments include identifying, by the hypervisor, a privileged guest from among a plurality of guests of the hypervisor; identifying, by the hypervisor, portions of the overcommitted resource that are allocated to the privileged guest; and preventing, by the hypervisor, resource management adjustment to the identified portions of the overcommitted resource that are allocated to the privileged guest.

Abstract: Shared memory and sockets are used to protect shared resources where multiple operating systems execute concurrently on the same hardware. Rather than using spinlocks for serializing access, when a thread is unable to acquire a shared resource because that resource is already held by another thread, the thread creates a socket with which it will wait to be notified that the shared resource has been released. The sockets may be network sockets or in-memory sockets that are accessible across the multiple operating systems; if sockets are not available, communication technology that provides analogous services between operating systems may be used instead. Optionally, fault tolerance is provided to address socket failures, in which case one or more threads may fall back (at least temporarily) to using spinlocks. A locking service may execute on each operating system to provide a programming interface through which threads can invoke lock operations.

Abstract: A computer-implemented method is provided for reducing network traffic associated with live migration. The method comprises selecting a virtual machine on a first physical host for migration to a second physical host, and providing each application running in the selected virtual machine with notification that the migration has started. In response to receiving the notification that the migration has started, each application reducing the number of memory pages in use during the migration. The selected virtual machine and each application is then migrated from the first physical host to the second physical host, wherein the migration of each application includes migration of the reduced number of memory pages.

Abstract: This docucment descirbes techniques for sharing Java class information in virtualized computing environments. In some embodimetns, an apparatus includes hardware components including one or more central processing units and main memory, wherein a portion of the main memory is configured to store shared Java classes. The apparatus can also include a hypervisor configured to control access to the hardware components, and to host a plurality of operating systems. Each of the operating systems can include a character device driver configured to write directly to the portion of main memory configured to store the shared Java classes. The apparatus can also include one or more Java virtual machines configured to execute the shared Java classes and modify the shared Java classes using the character device driver.

Abstract: A batching mechanism is provided that batches multiple Java Native Interface calls together such that the batch crosses the Java Native Interface boundary in a single transition. The batching mechanism operates by identifying a sequence of Java Native Interface calls to be made by native code, by encapsulating the identified sequence of Java Native Interface calls into a batch, and by communicating the batch as a single transition across the Java Native Interface boundary. In this manner, each call of the batch is encapsulated by iteratively performing for each call to be made, processes including identifying the Java Native Interface function to call, identifying the arguments to pass into the Java Native Interface function, dispatching to the Java Native Interface function and capturing the return value.